Un-inverting FrSky XSR & X4R-SB Telemetry & Sbus Signals
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- čas přidán 13. 09. 2024
- Inverting the telemetry signal from a FrSky XSR or X4R-SB receiver is a common thing to do on these newer F4 processor flight controllers, because they only have one hardware inverter which is being used for the Sbus signal. So here is how to get telemetry working. Also, I show you how to invert the Sbus signal just in case you want to be able to use Sbus on any UART of your choosing.
For more information on binding, changing firmware, and other helpful videos check out these playlist.
XSR playlist - • XSR Playlist
X4R-SB playlist - • X4R-SB Playlist
Taranis Q X7 playlist - • Taranis Q X7 Playlist
Taranis X9D playlist - • Taranis X9D Playlist
All my playlists - / @projectbluefalcon
Video editor - amzn.to/2n7sUiF
My personal vlog channel - / jcofficial3
I had a hard time trying to get my receiver to respond in BF. Tried all kinds of tips none worked. I figured my last option was the inverter way which I read about. Thank you JC for another helpful video. I just finished soldering the way you explained it here and it works great.
Still can't believe your gone. You really helped alot of us folks in the hobby. RIP
I'm currently doing a DYS build and your videos are a life saver. I really appreciate the effort you put into your vids.
Harry David how did you get on with your build?
DYS Omnibus F4 FC
DYS BL_Heli S 30A ESC
DYS Fire 2206 2600KV motors
AKK X1P VTX. (switchable-25,200,600mW)
FrSky X4RSB Receiver
Currently trying to fit it all in an Armattan Armadillo frame but it's a bit of a tight fit. Might gut it and put it all in my Martian 220.
I didn't know about needing to invert and thought I messed something up. I saw this and tried it out. Everything works fine except for fitting it all in the tiny space and buttoning it up.
I was just gonna ask something here, then I noticed the Channel Name again... R.I.P.!
What a great guy he was, as I heard his good friend Stew form UAVfutures. I always liked to watch his videos and still get tons of informations from him. Thank you and thanks to all that keep this online!
You still helping us. Thank you & RIP
You are the fucking man. It's people like you that helps me keep faith in humanity. Now that I've got my dys f4 board rocking sbus on the most current firmware I have antigravity. I love that mode. I am building a mrm switch blade on 5s with mb 2207-2580kv on 5051 gemfans today. I will finish it up later and send you a link. Cheers homie!
Good time!
The question is: Have you ever encountered a search for uninverted SBus in ia6, ia10,and ia10b receivers?
I want to make a repeater on QCZEK LRS, I need an uninverted SBus.
Some receivers have such a signal and you can take it to the built-in inverter.
There is an option to make an external inverter, but these are unnecessary elements in the repeater.
Thanks!
Helped me out yet again. RIP bro
thanks man, awesome video! got me up and flying again!!! Keep up the epicness!
glad you did this one. I was watching your 3 month old omnibus telemetry setup and was wondering if anything had changed, or if there were any other fixes. just picked up an XSR, ill probably just do the telemetry wire. is there still a problem with heat when using an omnibus f4 to power other items? if so I'll just power the rx and video right off my matek pdb.
You save my night ! Thank you very much !
Hi, I have a X8R. What can I do to get telemetry working?
damnit bro. still cant believe your gone.
Nice Video JC.
Thanks again man. RIP bro
Can you not just use the designated solder pad located directly to the side of the inverter chip?
First again! and this was the one I was waiting for!
Yea I figured I'd make this one so I dont have to explain it every time in every F4 flight controller video lol. I'll just leave a link to this.
That's thinking ahead! Hey JC are you still using your gmail account?
Nah I never use it. I only have it just because CZcams requires one to have this channel
well that explains why I haven't heard anything back 😄
RIP
RIP brother. I just started watching his videos. Stinks that he died
He died....dam!
Thanks for this, I lifted the freaking sbus/ppm selection pads on my opmnibus f4.... so i literally can't use the onboard inverter. :( Just a warning, those jumper pads are ridiculous. Trying to get them to bridge was a pain in the arse in the first place but then when I was soldering up the xsr cable i accidentally unbridged the jumper. Trying to bridge them the second time both pads lifted.
If you're having trouble getting solder to cross the gap, you can strip and tin the end of a wire, bend it at the end so it just crosses the gap, solder that across, then clip the excess off.
Hi. Nice video. I have an XSR. I've read that people are managing to get analog voltage telemetry from the XSR by soldering to a pin with a voltage divider to get pack voltage. I've tried this with a FBVS-01 but there is already a ~10.5v reading coming through on A2 like a phantom voltage reading. When I tap into the pin on the receiver which others have used, it just increases the voltage reading by about 0.8v on A2 with a 2S pack at 1/4 voltage division? Please could you let me know if there is a solution to this? I'd love to get battery voltage telemetry with the XSR and FBVS-01 as it's such a tiny and light weight solution. Many thanks.
Do i need to solder the telemetry wire to both tx and rc of the uart to get two way communication?
nice help :)
I ask for help! I'm not getting vbat information on qx7 I'm using dys f4 receptor x4rsb. the rssi of the card I am connecting on the white wire of the receiver. thank you
The Latest Betaflight firmwares come with a CLI Parameter called serialrx_inverted, so my question is, if we enable that parameter, do we still need to do this Un-invert hack on the receiver ?
Got it clarified already. The Serialrx_inverted parameter is only for SBUS, it has nothing to do with Telemetry signal. So if you are using a SMART port to connect to a TX port, then you have to uninvert the signal using a receiver hack only. Software cannot help for that. Just FYI for anyone needing this information.
hello, do you know why i get sensor lost allarm at the distance about 10-15 meters away? i got an SPF3 with 4XR-SB (sbus connected IO_2 ), telemetry on pin 6 IO_2, im using betaflight 3.1.7 (taranis X9D+ frmware OTx 2.2.0)
Hi,
I've watching your vids on the dys f4 flight controller with osd. I've also just purchased 15th June 2017 a x4r sbus reciever. You mentioned about inverting for sbus and telemetry. Do the newer boards still have this problem please?
Well in answer to my question.
The DYS F4 Pro V4 does not need the sbus being uninverted from the x4r sbus. It reads the normal sbus.
I hope this helps someone.
Hi! Why don't you use the golden spare soldering pads located close to the edge of that thing? They are supposed to be the un-inverted signal?!
Would be happy about an answere as I'm going to do this quiet soon!
Cheers
I came here to say this.. My guess is he didnt know
Luke Nukem hey does that work? I see the pads on the side of the xsr, but which ones are which
I personally haven't used the XSR, but take a look at this oscarliang.com/ctt/uploads/2015/10/frsky-x4r-sb-subs-uninverted-hack-naze32.jpg. I would take a guess that the pins are in the same order as on the X4R
so square pad will be VCC, and count away to get SBUS, like I said, I haven't used an XSR, but I HIGHLY doubt testing that would fry anything
id like a telemetry pad on that side
The X4r sbus uninverting has got to be the fiddlyist soldering I have ever done.
wait.. so sbus and telemetry will work on any f3 but will not work on f4 unless uninverted?? I'm confused. I have an f3 and sbus and telemetry is all working fine
F4 boards only have 1 HARDWARE inverter. The F3 boards can invert on all uarts by software
PBF -- still helping me out ,,, rip
Still learning from you bro....RIP
I watch his videos all the time - had no idea he passed away. Sad. How long ago?
Apparently you can grab the uninverted sbus on the x4r from the 3rd through hole on the right side. See this video. czcams.com/video/SdlZ1oS5yaA/video.html
Justin Delpero
I tried using this method on my x4r sbus connecting to dys f4 flight control. I'll let you know if it works.
Lee Swifty for sbus or s.Port? I managed to do it for my omnibus f4 pro
Justin Delpero
Hi, My apologies it wasn't the sbus which failed but the board. I've now replaced that board and I will try again. I will edit my post.